In August 2015, an ISIS terrorist boarded train #9364 from Brussels to Paris. Armed with an AK-47 and enough ammo to kill more than 500 people, the terrorist might have succeeded except for three American friends who refused to give in to fear. Stone was a martial arts enthusiast and airman first class in the U.S. Air Force, Skarlatos was a member of the Oregon National Guard, and all three pals proved fearless as they charged and ultimately overpowered the gunman after he emerged from a...MORE bathroom armed and ready to kill.